Trifluoro
三氟醚
??? 情景例句
But we can!
但我們能！
How's your niece?
你的侄兒好嗎？
A crowd of people gathered round him and a lady rubbed his arm with soap and butter, but George was firmly stuck.
這時在他周圍上了許多人，一位女士在喬治胳膊上抹了肥皂，黃油，但喬治的胳膊仍然卡得緊緊的。